/*
 * This is Melet, a salary slip designer. Feed it with data regarding to salary payment, prepare it for print through the graphical presentation, and you have it done.
 * Copyright (C) 2014, AFDiaX
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This program is based on UMLet, a Free UML Tool for Fast UML Diagrams.
 * To contact the authors of UMLet visit https://code.google.com/p/umlet/people/list
 * To contact the authors of Melet visit https://gna.org/users/gabocze
 */
package com.baselet.gui.command;

import java.util.List;
import java.util.Vector;

import com.baselet.diagram.DiagramHandler;

public class Macro extends Command {
	private final List<Command> _commands;

	public List<Command> getCommands() {
		return _commands;
	}

	public Macro(List<Command> v) {
		_commands = v;
	}

	@Override
	public void execute(DiagramHandler handler) {
		for (int i = 0; i < _commands.size(); i++) {
			Command c = _commands.get(i);
			c.execute(handler);
		}
	}

	@Override
	public void redo(DiagramHandler handler) {
		for (int i = 0; i < _commands.size(); i++) {
			Command c = _commands.get(i);
			c.redo(handler);
		}
	}

	@Override
	public void undo(DiagramHandler handler) {
		super.undo(handler);
		for (int i = 0; i < _commands.size(); i++) {
			Command c = _commands.get(i);
			c.undo(handler);
		}
	}

	@Override
	public boolean isMergeableTo(Command c) {
		if (!(c instanceof Macro)) {
			return false;
		}
		Macro m = (Macro) c;
		List<Command> v = m.getCommands();
		if (getCommands().size() != v.size()) {
			return false;
		}
		for (int i = 0; i < getCommands().size(); i++) {
			Command c1 = getCommands().get(i);
			Command c2 = v.get(i);
			if (!c1.isMergeableTo(c2)) {
				return false;
			}
		}
		return true;
	}

	@Override
	public Command mergeTo(Command c) {
		Macro m = (Macro) c;
		List<Command> v = m.getCommands();

		List<Command> vectorOfCommands = new Vector<Command>();
		Command ret = new Macro(vectorOfCommands);

		for (int i = 0; i < getCommands().size(); i++) {
			Command c1 = getCommands().get(i);
			Command c2 = v.get(i);
			Command c3 = c1.mergeTo(c2);
			vectorOfCommands.add(c3);
		}
		return ret;
	}

	@Override
	public boolean isChangingDiagram() {
		for (Command c : _commands) {
			if (c.isChangingDiagram()) {
				return true;
			}
		}
		return false;
	}
}
